3RT2027-1BB42

Siemens SIRIUS 3RT2027-1BB42, S0 body three-pole power contactor, AC-3 rated current 32A, 15kW at 400V, DC electromagnetic coil drive, main circuit screw terminal, IP20 protection, 690V insulation.

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Siemens 3RT2027-1BB42 DC Coil Power Contactor
Product Positioning

The 3RT2027-1BB42 belongs to the Siemens SIRIUS 3RT20 series S0 size three-pole power contactor. The main circuit rated operating current (AC-3) is 32A, corresponding to a 400V switchable 15kW motor load. The main circuit uses a screw terminal design. This model's drive coil is a DC electromagnetic type, belonging to the DC coil family along with the 1BB40 and 1BB44 in the same series. It is suitable for use in automation panels with DC power supply as the control circuit. The front protection rating is IP20, the rated insulation voltage of the main and auxiliary circuits is 690V, and the mechanical life is up to 10 million operations. Please refer to the product number and shipping nameplate for the actual coil voltage and auxiliary contact combination. Kenxin Motor has stock available for verification of corresponding specifications.

Core Product Advantages and Features
S0 size standard body
It shares the S0 chassis platform with other models in the 3RT2027 series, featuring a 32A/15kW main circuit capacity, facilitating unified spare parts management.
DC electromagnetic coil drive
The holding mechanism is driven by DC power, making it suitable for automated trays with DC control power supplies.
690V insulation/IP20 protection
The main and auxiliary circuits have a rated insulation voltage of 690V and a front protection rating of IP20, making them suitable for general industrial environments.
10 million mechanical cycles life
The mechanism is designed to withstand 10 million opening and closing operations, reducing the maintenance frequency of the motor circuit during long-term operation.
project Specification
Rated operating current (AC-3) 32 A
Rated power (400V AC-3) 15 kW
Extreme number 3P (3 sets of main normally open contacts)
Coil type DC electromagnetic coil
Size Class SIRIUS S0
Main circuit terminals Screw terminals
Protection level IP20 (Front)
Rated insulation voltage 690V
Mechanical life 10 million operations
Applicable Standards IEC 60947-4-1
country of origin Germany

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